PORTLAND — The Topsham-based contractor Harry C. Crooker and Sons has been sold for an undisclosed price to its chief engineer and a group of local investors.

The company announced the sale in a news release early Tuesday, noting that “the company remains locally owned and operated while retaining all of the employees and the management team.”

Ted Crooker, the company’s treasurer and a part owner, declined to comment on the sale when reached by phone early Tuesday, saying a 95-word news release is the only statement he wished to give at this time. He did not confirm whether he still has an ownership stake in the company.

Thomas Sturgeon, who will take over as the company’s president and CEO, wrote in an email that he is one of the company’s new owners along with a group of local investors. He declined to disclose the sale price or the company’s annual revenue.

The company, which was founded in 1935 by Harry Crooker, has about 150 employees and specializes in heavy construction, including road building, underground utility installation and commercial site preparation.

The company said it “remains committed” to support the state and the municipalities with which it contracts for construction projects.